Home / 144,012,459.41-198,737,187.87-77,932,959.72

Finding the Fourth Proportional to 144,012,459.41, 198,737,187.87 and 77,932,959.72

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Solution

The fourth proportional to 144,012,459.41, 198,737,187.87 and 77,932,959.72 is: 107,547,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,012,459.41 : 198,737,187.87 = 77,932,959.72 : x
  2. Step 2: Convert to fraction form
    144,012,459.41/198,737,187.87 = 77,932,959.72/x
  3. Step 3: Cross multiply
    144,012,459.41x = 198,737,187.87 × 77,932,959.72
  4. Step 4: Simplify right side
    144,012,459.41x = 15,488,177,257,138,782
  5. Step 5: Solve for x
    x = 15,488,177,257,138,782/144,012,459.41
  6. Step 6: Final answer
    x = 107,547,481.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.